Establishing security and privacy in WAVE-enabled vehicular ad hoc networks

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dc.contributor.authorBiswas, Subir
dc.contributor.examiningcommitteevan Rees, John (Computer Science) Hossain, Ekram (Electrical and Computer Engineering) Cherkaoui, Soumaya (Sherbrooke University)en_US
dc.contributor.supervisorMisic, Jelena (Computer Science) Eskicioglu, Rasit (Computer Science)en_US
dc.date.accessioned2013-01-11T17:29:24Z
dc.date.available2013-01-11T17:29:24Z
dc.date.issued2013-01-11
dc.degree.disciplineComputer Scienceen_US
dc.degree.levelDoctor of Philosophy (Ph.D.)en_US
dc.description.abstractSecurity and privacy are among the growing concerns of a Vehicular Ad hoc Network (VANET) which requires a high degree of liability from its participants. In this dissertation, We address security, anonymity and privacy challenges of VANETs in the light of the IEEE standards for vehicular communications. VANET provides a variety of road-safety and other applications through wireless devices installed in vehicles and roadside infrastructure. A roadside infrastructure in VANET is generally public, and is prone to several different malicious attacks including node compromise, impersonation, and false message delivery attacks. Therefore, a user of a VANET must verify the integrity of a message that is delivered from a roadside infrastructure. On the other hand, a vehicle-originated message should be anonymous in order to ensure user-privacy in a VANET. However, a vehicle must not be able to take advantage of its anonymity for any misbehavior like sending false messages or malicious updates to other vehicles or a roadside infrastructure. We use proxy signature, identity-based signature, and elliptic curve cryptosystems to provide authentication for infrastructure generated messages, and anonymous authentication for vehicle originated messages. Authentication in a dense traffic condition is a challenge for a receiving entity as it incurs a processing delay at the receiving end. We address this issue with a dynamic approach that selectively verifies received messages based on a message's MAC-layer priority and a sender's information relevance. This approach makes a trade-off between priority and fairness in vehicular message authentication. We develop a network simulator to measure the impact of our authentication schemes over a WAVE protocol stack. Also, we investigate how some of the MAC-layer weaknesses may impair the security of a VANET. Our solutions are lightweight, bandwidth friendly and compatible to the current standards of vehicular communications.en_US
dc.description.noteFebruary 2013en_US
dc.identifier.urihttp://hdl.handle.net/1993/14439
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectVANET Securityen_US
dc.subjectprivacyen_US
dc.subjectanonymityen_US
dc.subjectauthenticationen_US
dc.subjectWAVEen_US
dc.subjectDSRCen_US
dc.subjectproxy signatureen_US
dc.subjectID-based signatureen_US
dc.subjectECDSAen_US
dc.subjectEDCAen_US
dc.subjectOBUen_US
dc.subjectRSUen_US
dc.subjectvehicular communicationsen_US
dc.subjectcontention windowen_US
dc.subjectaccess categoryen_US
dc.subjectDDoSen_US
dc.titleEstablishing security and privacy in WAVE-enabled vehicular ad hoc networksen_US
dc.typedoctoral thesisen_US
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